Instruction/ maintenance manual of the product R275HC Russound
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R-Series R275HC 2-Channel Power Amplifier User’ s Manual.
2 “WARNING” “ TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.” “CAUTION” “ TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER - SERVICEABLE P ARTS INSIDE. REFER SERVICING TO QUALI- FIED SERVICE PERSONNEL.
3 INTRODUCTION The Russound R275HC is a 2-channel high-current power amplifier capable of driving low impedance loads and incorporates selectable volume control p r o t e c t i o n c i r cuitry .
4 1 2 3 4 3 6 5 8 Power Switch: T urns the amplifier on/off. This switch does not disconnect the main power feed from the amplifier; this r equires that the power cor d be unplugged from the outlet.
5 Audio RCA Cable from sourc e (-)Negative Speaker cable (+)Positiv e 8-ohm Speaker R275HC AMPLIFIER BRIDGED OPERA TION When the amplifier is in Bridged mode operation, both the left and right channels are combined for a higher power mono output.
6 POSSIBLE SYSTEM CONFIGURA TIONS The R275HC can be configured for lar ge autoformer- based volume control systems/speaker selectors. When using the R275HC for this application, set the Low Cut switch to the “On” position.
7 SPECIFICA TIONS Stereo Continuous Output Power: 75W per channel at 8 ohms 100W per channel at 4 ohms Bridged Output Power: 200W at 8 ohms, 2 channels bridged THD+N: <0.05% from 20Hz to 20kHz Signal-to-Noise Ratio: >100dB A-weighted Frequency Response: 20Hz to 20KHz +/- 0.
5 Forbes Rd. Newmarket, NH 03857, USA T el 603.659.5170 • Fax 603.659.5388 e-mail: tech@russound.com 28-1167 03/22/05 R-Series R275HC 2-Channel Power Amplifier User’ s Manual.
An important point after buying a device Russound R275HC (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Russound R275HC yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Russound R275HC - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Russound R275HC you will learn all the available features of the product, as well as information on its operation. The information that you get Russound R275HC will certainly help you make a decision on the purchase.
If you already are a holder of Russound R275HC, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Russound R275HC.
However, one of the most important roles played by the user manual is to help in solving problems with Russound R275HC. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Russound R275HC along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
